If it was any other program that was this unstable I would stop using it instantly. As I have been using Xolox for a long time I will try and help.

Most of the errors are

Exception EAccessViolation in "SocketDataAvailable"
Bytes read:1452
Total bytes read:2918
Exception message:Access violation at address 0041DFF7 in module 'xolox.exe'. Read of address 00000000
Connection type:11
Connection buffer length:1452
Connection buffer offset:81
Received packet:

This is with version 1.20 build 177. It says there are no newer versions.